Log of my...

在C:\windows\system32\drivers\etc\hosts 文件中加上如下
64.147.188.86 www.xmarks.com
64.147.188.92 api.xmarks.com
64.147.188.89 login.xmarks.com
64.147.188.87 sync.xmarks.com
64.147.188.86 static.xmarks.com
64.147.188.86 download.xmarks.com
64.147.188.86 my.xmarks.com

Firefox -> 工具 -> xmarks -> 设置 -> 高级 -> 安全 -> 全部加密